Then there are mothers that breastfeed till the age of eight.
"a British mother with two daughters, the younger one being eight-years-old. This woman is supposedly currently breastfeeding her younger child. The mother believes that her children should decide on when this type of bonding may end. The little girls are clearly fond of breastfeeding, and even draw pictures of their mother's breasts. There are studies about this saying that the longer you breastfeed a child, the higher the child's IQ rises."
source: http://www.fanpop.com/spots/debate/...-breastfeeding-8-year-old-daughter-what-think
PS: How old are your boys now?
"a British mother with two daughters, the younger one being eight-years-old. This woman is supposedly currently breastfeeding her younger child. The mother believes that her children should decide on when this type of bonding may end. The little girls are clearly fond of breastfeeding, and even draw pictures of their mother's breasts. There are studies about this saying that the longer you breastfeed a child, the higher the child's IQ rises."
source: http://www.fanpop.com/spots/debate/...-breastfeeding-8-year-old-daughter-what-think
PS: How old are your boys now?